add hello solana steel example

Author: Perelyn-sama

basics/hello-solana/steel/.gitignore

@@ -0,0 +1,2 @@
+target
+test-ledger

basics/hello-solana/steel/README.md

@@ -0,0 +1,22 @@
+# Steel
+
+**Steel** is a ...
+        
+## API
+- [`Consts`](api/src/consts.rs) – Program constants.
+- [`Error`](api/src/error.rs) – Custom program errors.
+- [`Event`](api/src/event.rs) – Custom program events.
+- [`Instruction`](api/src/instruction.rs) – Declared instructions.
+
+## Instructions
+- [`Hello`](program/src/hello.rs) – Hello ...
+
+## State
+- [`User`](api/src/state/user.rs) – User ...
+
+## Tests
+
+To run the test suit, use the Solana toolchain:
+```
+cargo test-sbf         
+```

basics/hello-solana/steel/api/Cargo.toml

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+[package]
+name = "steel-api"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+bytemuck.workspace = true
+num_enum.workspace = true
+solana-program.workspace = true
+steel.workspace = true
+thiserror.workspace = true

basics/hello-solana/steel/api/src/error.rs

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+use steel::*;
+
+#[derive(Debug, Error, Clone, Copy, PartialEq, Eq, IntoPrimitive)]
+#[repr(u32)]
+pub enum SteelError {
+    #[error("This is a dummy error")]
+    Dummy = 0,
+}
+
+error!(SteelError);

basics/hello-solana/steel/api/src/instruction.rs

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+use steel::*;
+
+#[repr(u8)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq, TryFromPrimitive)]
+pub enum SteelInstruction {
+    HelloSolana = 0,
+}
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, Pod, Zeroable)]
+pub struct HelloSolana {}
+
+instruction!(SteelInstruction, HelloSolana);

basics/hello-solana/steel/api/src/lib.rs

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+pub mod error;
+pub mod instruction;
+pub mod sdk;
+
+pub mod prelude {
+    pub use crate::error::*;
+    pub use crate::instruction::*;
+    pub use crate::sdk::*;
+}
+
+use steel::*;
+
+// TODO Set program id
+declare_id!("z7msBPQHDJjTvdQRoEcKyENgXDhSRYeHieN1ZMTqo35");

basics/hello-solana/steel/api/src/sdk.rs

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+use steel::*;
+
+use crate::prelude::*;
+
+pub fn hello(signer: Pubkey) -> Instruction {
+    Instruction {
+        program_id: crate::ID,
+        accounts: vec![AccountMeta::new(signer, true)],
+        data: HelloSolana {}.to_bytes(),
+    }
+}

basics/hello-solana/steel/cargo.toml

@@ -1,8 +1,22 @@
 [workspace]
-members = [
-    "program",
-]
 resolver = "2"
+members = ["api", "program"]
 
-[profile.release]
-overflow-checks = true
+[workspace.package]
+version = "0.1.0"
+edition = "2021"
+license = "Apache-2.0"
+homepage = ""
+documentation = ""
+respository = ""
+readme = "./README.md"
+keywords = ["solana"]
+
+[workspace.dependencies]
+steel-api = { path = "./api", version = "0.1.0" }
+bytemuck = "1.14"
+num_enum = "0.7"
+solana-program = "1.18"
+steel = "1.3"
+thiserror = "1.0"
+solana-sdk = "1.18"